法曲率最值的直接求法

法曲率最值的直接求法

邢家省

Direct Method of Findigthe Extreme Value of Normal Curvature

XING Jia-Sheng

journal6 . 2012, (4): 11 -15 . DOI: 10.3969/j.issn.1007-2985.2012.04.003